Simple Program for Change the Value of Constant Integer using...

About this program

This is an example program in c pointer example programs. Read the concept first: C Pointers, then study the code and output below.

Poniter Syntax:

pointer_vaibale = &variable;

Simple Program for Change the value of constant integer Using Pointer

/* Simple Program for Change the value of constant integer Using Pointer in C*/
/* Print Pointer Address Program,C Pointer Examples */

#include <stdio.h>

int main() {
  const int a = 100;
  int *pt;

  printf("Pointer Example Program : Change the value of constant integer\n");

  pt = &a;
  *pt = 200;

  printf("\n[a  ]:Value of A = %d", a);

  return 0;
}

/*
 * But It throws warning in GCC compiler
 * change_const.c:12:6: warning: assignment discards 'const' 
 * qualifier from pointer target type [-Wdiscarded-qualifiers]
 * */

Sample Output:

Pointer Example Program : Change the value of constant integer

[a  ]:Value of A = 200

Related Pages

Learn the concept first, then study the code:

• C Programs — Browse all C Programs.
• C Pointers — Concept — pointers, addresses and dereferencing.
• Simple Pointer Example Program — More in c pointer example programs.
• Simple Program for Print address of Variable Using Pointer in C — More in c pointer example programs.